MV8113 Optoelectronics

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LED Indication provides a simple and aesthetically pleasing way to display information to a user. Many devices contain discrete LED elements that allow the user to be informed of the present state of the device.The MV8113 is a single-chip LED driver for up to three discrete LEDs, operating from a single 1.5V to 4.5V supply. The output drivers are capable of sinking up to 10mA of current and can connect to either common anode or common cathode LEDs.

Applications of the MV8113

The MV8113 is commonly used in small-scale applications such as automotive instrument clusters, consumer appliances, and cellphones. Many of these applications require simple indication of states, and the MV8113 is capable of providing a straightforward, unobtrusive indication. This discrete LED indication allows for efficient and reliable use of space for applications that demand user feedback.

Working Principle of the MV8113

The MV8113 works by taking an analog signal, such as brightness level, or a current-controlled voltage, and converting it into a digital signal. This digital signal is what controls the output of the LED indicator. The input can be one of two types: either a programmable reference digital signal, or a current-controlled analog signal. The reference digital signal is connected to the logic level inputs, which are pulled up to the digital voltage level. This creates a logic level of either high or low, which is then compared to the analog signal.

The output of the MV8113 is then determined by the input signal, with a low signal indicating that the LED should turn off and a high signal indicating that the LED should turn on. Furthermore, the MV8113 can be configured to operate in a current-controlled mode, where a current is applied to the input and the corresponding LED intensity is adjusted. This method of operation is useful for applications where the brightness of the LED can be regulated, such as in a dimming circuit.

Conclusion

The MV8113 is a single-chip LED driver that is capable of powering up to three discrete LEDs. This device is commonly used in applications where a simple indication of states is required and provides an unobtrusive and efficient way of displaying information to the user. Furthermore, the MV8113 can either be controlled digitally, or configured in a current-controlled mode, allowing the user to control the intensity of the LEDs.

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